[U-Boot] [PATCH 2/5] Added extra documentation about how the relocation address to RAM is picked for ARM.

[Wolfgang Denk <wd@denx.de>]

Dear Christopher Harvey,

In message <20110706205857.GB2168@harvey-pc.matrox.com> you wrote:
>
> > Also delete "for ARM", and s/arm/<arch>/.  This is not ARM specific.
> 
> I don't understand, I found the following snippet in 
> arch/arm/lib/board.c
> 
>        --addr defined and set here--
> 
> 	gd->relocaddr = addr;
> 	gd->start_addr_sp = addr_sp;
> 	gd->reloc_off = addr - _TEXT_BASE;
> 	debug ("relocation Offset is: %08lx\n", gd->reloc_off);
> 	memcpy (id, (void *)gd, sizeof (gd_t));
> 
> 	relocate_code (addr_sp, id, addr);
> 	/* NOTREACHED - relocate_code() does not return */
> 
> Running grep -R gd->relocaddr *,
> I found similar assignments for various architectures. 

Yes, that's what I said: this is not ARM specific, it is supposed to
be common code used by all architectures (except for the sad fact that
there are several non-conforming implementations).  But if we document
it, we should document the nominal state.  [If in doubt, use the
powerpc implementation as reference.]

Best regards,

Wolfgang Denk

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